| // PR c++/69694 | |
| // This is a reduced version of decltype74.C. | |
| // { dg-do compile { target c++11 } } | |
| template<typename... Ts> using void_t = void; | |
| extern void *declval_void; | |
| template<typename, typename> struct Fun { }; | |
| template<typename Desc> | |
| struct Fun<Desc, void_t<decltype (declval_void = Desc::name)>> | |
| { | |
| void fun(); | |
| }; | |
| struct Tag { static constexpr void* name = 0; }; | |
| template<typename> void a() | |
| { | |
| Fun<Tag, void>{}.fun(); | |
| } | |
| void b() { a<int>(); } |